MCCB Insights | Sumble

What is MCCB?

An MCCB (Molded Case Circuit Breaker) is an electromechanical device that protects an electrical circuit from overcurrent, which can be caused by overload or short circuit. Its function is to interrupt current flow after a fault is detected. Unlike miniature circuit breakers (MCBs), MCCBs are typically used for higher current ratings and can be adjustable, allowing settings to be tailored for specific applications. They are commonly used in industrial and commercial settings for the protection of distribution circuits and large equipment.

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What other technologies are related to MCCB?

MCCB Competitor Technologies

ACB

Air Circuit Breakers (ACBs) are used for similar applications as MCCBs but typically at higher current ratings. They offer alternative protection solutions, making them competitors.

mentioned alongside MCCB in 63% (211) of relevant job posts

MCB

Miniature Circuit Breakers (MCBs) serve a similar function to MCCBs but are typically used for lower current applications. They are an alternative technology for circuit protection, and so compete with MCCBs.

mentioned alongside MCCB in 44% (131) of relevant job posts

MCCB Complementary Technologies

contactors

Contactors are often used in conjunction with MCCBs in motor control circuits. MCCBs provide overcurrent protection while contactors switch the circuit. They complement each other in a complete system.

mentioned alongside MCCB in 5% (81) of relevant job posts